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Type of publication: conference paper
Type of publication (PDB): Tezės kituose recenzuojamuose leidiniuose / Theses in other peer-reviewed publications (T1e)
Field of Science: Ekologija ir aplinkotyra / Ecology and environmental sciences (N012)
Author(s): Laurinavičienė, Dovilė;Dėdelė, Audrius
Title: Measurement of nitrogen dioxide concentration in cold and warm seasons using a passive sampling method
Is part of: The vital nature sign [elektroninis išteklius] : 7-th international scientific conference : abstract book. Kaunas : Vytautas Magnus university, 2013, [no. 7]
Extent: p. 56-56
Date: 2013
Keywords: Air pollution;Nitrogen dioxide concentration;Cold and warm seasons;Traffic intensity sites types;Interpolation method
Abstract: The aim of the present study was to assess distribution of nitrogen dioxide concentration in Kaunas city during cold and warm seasons. A passive sampling method was used. Nitrogen dioxide concentration was measured at 39 sampling sites in Kaunas city. Study was performed in 2010– 2011. The study results showed that mean of nitrogen dioxide concentration in Kaunas city was 12.0 μg/m3. Nitrogen dioxide concentration in cold season (winter) was 18.2 μg/m3, in warm (summer) 5.7 μg/m3. The highest nitrogen dioxide concentration was obtained near street site (14.9 μg/m3), the lowest – near regional background site (9.4 μg/m3) and near urban background site it was 11.4 μg/m3. The results of the study were introduced in the ESRI Geographic Information System software ArcGIS and the extension Geostatistical Analyst was used to obtain maps of distribution of nitrogen dioxide concentration. Lowest nitrogen dioxide pollution area was in districts which are located in the periphery of the city. The highest concentration of nitrogen dioxide was in Centras, Žaliakalnis, Šančiai, Kalniečiai, Sargėnai. It is caused by intensive traffic and unfavorable geographical position. In these districts there are more busy roads and more buildings. Centras district is located in a valley; there are unfavourable conditions for pollution dispersion
Affiliation(s): Aplinkotyros katedra
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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